A View from Emerging Technology from the arXiv Gouls 'n' Ghosts The best of the rest from the Physics arXiv this week March 10, 2012 PageRank Optimization Applied Spam Detection Information Communicated By Entangled Photon Pair Cosmological Particle Creation In The Lab? A Study of the Dark Core in A520 with Hubble Space Telescope: The Mystery Deepens Search For Microscopic Black Holes In pp Collisions at sqrt(s) = 7 TeV Subscribe to Continue Reading Uh oh–you've read all five of your free articles for this month. Insider Online Only $19.95/yr US PRICE Subscribe See international, alumni and other pricing options Already an Insider? Log in. Have a magazine subscription? Activate your Insider account. You've read of free articles this month. Subscribe Become an Insider or Sign in for unlimited access to online articles .